evdev and Trust TB-5300 tablet: wrong axis labels

Daniil V. Kolpakov dan at riga.lv
Sun Dec 13 08:25:03 PST 2009

Matthew, thanks for the info!

В сообщении от 13 декабря 2009 Matthew Helsley написал(a):
> What does /proc/bus/input/devices say about your tablet? I've got a
> UC-LOGIC "Genius Pensketch 12x9" which had (and still has) some USB
> quirks. The worst was it reported the X axis as the Z axis. It turned
> out that the hid descriptor was bad and thus the kernel hid parser got
> confused. Specifying the "MULTI" quirk seemed to fix the axis
> labelling problem. You can test it and other quirks out by writing to
> a sysfs file -- though I'm looking and can't seem to find it on my
> 2.6.31 distro kernel :(.

/proc/bus/input/devices says pretty much the same as it does in your case:

I: Bus=0003 Vendor=5543 Product=0004 Version=0100
N: Name="UC-LOGIC Tablet WP5540U"
P: Phys=usb-0000:03:00.0-2/input0
U: Uniq=
H: Handlers=mouse2 event6
B: EV=1f
B: KEY=c01 3f0001 0 0 0 0
B: REL=303
B: ABS=100000f
B: MSC=10

I can't find any information on how to enable quirks through sysfs (and where 
to get list of available quirks, too). Can you point me to some documentation 
on this subject?

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